Peters



2 Sheets-'Sheet 1. C. B. RICE.

WATER HEATER.

(No Model.)

Patented Jan. Z1

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(No Model.)

` 2 Sheets-Sheet 2.

C. B. RICE.

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WATER HEATER.

Pateted Jan. l21, 1890.

UNITED STATES ATENT OFFICE.

CHARLES B. RICE, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE RICE & WHIT- ACREMANUFACTURING COMPANY, OF SAME PLACE.

WATER-H EATER.

SPECIFICATION forming part of Letters Patent No. 420,019, dated January21, 1890.

Application filed 'August 9, 1888. Serial No. 282,325. (No model.)

To all whom t may concern,.-

Beit known that I, CHARLES B. RICE, of Chicago, in the county of Cookand State of Illinois, have invented certain new and useful Improvementsin Vater-I'Ieaters 5 and I do hereby declare that the following is afull, clear, and exact description thereof, reference being had to theaccompanying drawings, and to theletters of reference marked thereon,which form a part of this specification.

This invention relates to an improved water-heater of that class shownin a prior patent, No. 351,070, granted to me October 19, 1886, andembracing upper and lower water heads or receptacles and a plurality ofannularly-arranged water-pipes connecting the top and bottom heads andforming the side walls of the fire-pot of the apparatus.

The invention consists in the matters hereinafter described, and pointedout in the appended. claims.

In the accompanying drawings, illustrating my invention, Figure 1 is acentral vertical section of a water-heating apparatus embodying myinvention. Fig. 2 is a sectional plan view thereof, taken upon line xxof Fig. 1. Fig. 3 is a detail plan View of a lining-piece shown in Figs.1 and 2. Fig. et is a central vertical section of an apparatus differing'somewhat from that shown in Figs. 1 and 2.

As illustrated in said drawings, A is a hollow ring-shaped castinglocated at thc base ofthe heater; B, a similar casting located at thetop of the same, and C C C are vertical water-tubes connected at theiropposite ends with the castings A and B.

I) is a water-front consisting of a hollow casting which occupies aspace above the bottom casting A, and is connected with the said castingby means of a nipple (l and with ire upper casting B by means of twopipes E is a sheet-metal cylinder or jacket surrounding the watertubesand filling the space between the bottom and top castings A and B. Saidjacket is provided with a fuel-door the width of the door. The spaceinclosed by the lower parts of the tubes, the waterfront D, and thelower casting A forms the fire-pot of the apparatus, a suitablefuel-grate F being placed at the level of the bottom of the casting A,as clearly shown in the drawings.

G is a cast base, which is fitted at its upi to the dome H, andextending downwardly through the casting B and terminating at a pointnear the fuel-door. The said cylinder is herein shown as riveted to anannular conical casting I, which is fit-ted to the margins of a centralhole in the top of the dome II.

I2 is a cover hinged to the casting I for closing 4the top of themagazine.

In cases where the coal-magazine is absent the dome II may be shaped asshown in dotted lines in Fig. 1 and the smoke-pipe H connected with thetop of the dome. The upper hollow casting B is shown in said Figs. 1 and2 as provided with integral smoke pipes or iiues b b, which affordpassages for the upward passage of smoke and products of combustionthrough said casting and add to the heating-surface of said casting.When the coal-magazine is absent, the central opening of said annularcasting B will preferably be covered with a plate, (shown in dottedlines at B', Fig. 1,) by which the smoke and products of combustion willbe forced to pass through the iiues Z) b, so that the heating-surfacesafforded by said iiues will be fully utilized.

For the purpose of increasing the heating capacity of the heater I placein the space in closed by the water-tubes C C and C C above the iirepota spiral coil .I of pipe, which is connected at its upper end with thecasting B and at its lower end with one of the pipes C.

The upper end of said coil is herein shown as,V

IOO

attached to the upper casting B at the space afforded between the pipesC C above the fuel-door. At its lower end the said coil is desirablyconnected with one of the rear water-tubes at a point somewhat above thelevel of the lire.

The several joints between the tubes C C and J and the hollow casting Bare herein shown as formed by screw-threading the ends of the tubes andthe holes in the castings and providing the tubes with screw-collars cand j, which are tightened against the casting after the pipes are inplace, packing-washers being placed between said collars and thesurfaces of the castings. To enable the tubes to beinserted in bothupper and lower castings the screw-threads at the upper end of each tubeare cut of sufficient length to enable the tube to be screwed into thetop casting farther than necessary for making the joint and then backedout of that casting and into the lower one. Tight joints are formed atthe lower ends of the tubes by screwing -the latter inwardly the fulllength of the threaded part or until a tight joint is formed in theusual manner.

In similar apparatus as heretofore constructed-as, for instance, in theconstruction shown in my said prior patent-a space or opening isy leftbetween the pipes and the external cylinder or jacket, in which ashesare liable to accumulate and remain. The presence of ashes about andbetween the water-tubes is `objectionable, for the reason that the ashesretard or prevent the transmission of heat to the rear surfaces of thewater-tubes. In order K, occupying the spaces between the tubes and theouter cylinder or jacket.

ashes between the tubes, while at the same time exposing as much of thepipes as is prac- In the particular construction illustrated thefilling' i K is made of cast metal or fire-brick in sevi eral pieces orsections 7s 7c, one of which is! The filling may, i however, beconstructed or inserted in anyfl ticable to the direct action of theiire.

shown separately in Fig. 3.

way found convenient or desirable.

are absent.

L, of sheet metal, being placed around the Such iilling may be made ofcast metal, tire-brick, asl bestns, cement, or other refractorymaterial. i The filling is desirably fitted to the rear sury faces ofthe tubes and extends between the same -to the points at which they comenearest together, thereby preventing entrance of tubes C C inside of thejacket to prevent immediate contact of hot coals and ashes with thelatter.

M M indicate in both forms of the apparatus water-pipes communicatingwith the interior of the heater, such pipes serving to afford a supplyof water to the heater and to carry-the heated water to the point whereit is used. Vhen the heater is used for housewarming, the said pipes M Mwill form the terminals of the water-circulating system of the building.Such pipes M M may also be connected with a water-tank, the water inwhich is to be heated by being circulated through the heater.

It will of course be understood that the apparatus herein shown is morespecifically intended for heating water and not for the generation ofsteam, the said apparatus being without any steam-dome or other space orchamber to contain steam, and being therefore much more compact andsimple in form than boilers employed for generating steamsuch,forinstance, as are shown in Figs. l and 4 of said prior Patent No.351,070.

The object of employing the water-front D, arranged in the mannerdescribed, is to utilize the space below the fuel-door asheating-surface, it being entirely obvious that unless the saidwater-front were employed the space necessarily left between thevertical tubes for the door would be vacant and a part of the heatproduced by the fuel would be wasted. Such water-front also serves as ashield to protect the sheet-n1etal jacket from the direct action of thelire.

I claim as my inventionl. A water-heating apparatus comprising a hollowring-shaped bottom casting, a hollow ring-shaped top casting, a seriesof vertical tubes connecting said castings, a water-front located abovethe lower casting and connected therewith and with the top casting, acasing or jacket surrounding the tubes, tted at its upper and loweredges to said upper and lower castings, and provided with a door locatedabove said water-front, a base sustaining the lower hollow casting, agrate sustained upon said base and closing the interior space of thesaid lower casting, a smoke-dome resting in its margins upon the top ofthe upper hollow casting, and a smoke-pipe connected with said dome,substantially as described.

2. A water-heating apparatus comprising a l hollow ring-shaped bottomcasting, a hollow In Fig. 4 I have shown another form of water-heaterhaving some of the main features of my invention. In this instance thebottoni i casting A, pipes C C and C C', water-front ring-shaped topcasting, a series of vertical tubes connecting said castings, a casinglor jacket surrounding the tubes and fitted at its IOO IIO

upper and lower edges to said upper and lower cast integral therewith,substantially as described.

3.- A water-heating apparatus comprising a hollow ring-shaped bottomcasting,a hollow ring-shaped top casting, a series of vertical tubesconnecting said castings, a casing or jacket surrounding the tubes andtttin g at its upper and lower edges to the said top-and bottomcastings, a hollow base sustaining the lower casting, a grate sustainedupon said base, a smoke-dome resting upon the top cast' ing, asmoke-pipe connected with said dome, a plurality of integral Verticalflues in said ring-shaped top casting7 and a cylindric fuelmagazineattached to the upper part of the smoke-dome and passing through thesaid ring-shaped top casting, substantially as described.

ll. A water-heating apparatus comprising a hollow ring-shaped bottomcasting, a hollow ring-shaped top casting, a series of Vertical tubesconnecting said castings, a casing or jacket surrounding the tubes andfitted at its upper and lower edges to said upper and lower castings, ahollow base sustaining the lower casting, a grate sustained upon saidbase and filling the interior space of the said lower casting, a domeresting at its margins upon theupper hollow casting, a smoke-pipeconnected with said dome, and a vertically-arranged coil attached to oneof said vertical pipes at its lower end and connecting at its upper endwith the upper hollow casting, substantially as described.

5. Awater-heating apparatus comprising a hollow ring-shaped bottomcasting, a hollow ring-shaped top casting, a series of vertical tubesconnecting said castings, a water-front located over said lower castingand connected therewith and with the top casting, a casing or jacketsurrounding the tubes and tted at its upper and lower edges to saidupper and lower castings, a hollow base sustaining the lower casting, agrate sustained upon said base and iilling the interior space of thesaid lower casting, a dome resting at its margins upon the upper hollowcasting, a smoke-pipe connected with said dome, and avertically-arranged coil attached to one of the said vertical pipes atits lower end and connecting at its upper end with the upper hollowcasting within the space over said water-front, substantiallj7 asdescribed.

6. A water-heating apparatus comprising a hollow ring-shaped bottomcasting, a hollow ring-shaped top casting, a series of Vertical tubesconnecting said castings, a water-front connected with said castings, acasing or jacket surrounding the tubes and fitted at its upper and loweredges to said upper and lower castings, a hollow base sustaining thelower castings, a grate sustained upon said base, a dome resting oversaid upper casting, and a filling inserted between the lower parts ofsaid tubes and the said jacket, substantially as described.

In testimony that I claim the foregoing as my invention I affix mysignature in presence of two witnesses.

CHARLES. R. RICE.

lVitnesses:

C. CLARENCE PooLE, TAYLOR E. BROWN.

